A word from Marilyn, the 'Back to the Future Family' costume creator:

Several months ago, our middle son Derek said he wanted to be Marty McFly for Halloween, then our oldest son said he wanted to be Doc Brown, which led our youngest son wanting to be the Delorean time Machine. We (the parents) wanted to join the fun so we dressed up as George McFly and Lorraine (Baines) McFly from the "Enchantment Under the Sea Dance" Our funnest Halloween ever.